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State what happens when a solid mixture ...

State what happens when a solid mixture of KCl and `K_(2)Cr_(2)O_(7)` is heated with conc. Sulphuric acid. Give balanced chemical equation.

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Dark red vapour of chromyl chloride `(CrO_(2)Cl_(2))` is liberated.
`K_(2)Cr_(2)O_(7)+4KCl+6H_(2)SO_(4)rarr 2CrO_(2)Cl_(2)+6KHSO_(4)+3H_(2)O`
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